Podcast 743: Rust Rings

Podcast 743: Rust Rings

Contributor: Jared Scott, MD

Educational Pearls:

  • A rust ring can occur after a metallic foreign body is left in the eye for a prolonged period of time
  • Issues occur when the rust ring is left as it can epithelialize and become a permanent spot in the patient's vision
  • An eye burr or Alger brush can help to gouge out the rust ring in the emergency setting
  • These tools have a failsafe mechanism to prevent the eye burr from going through layers past the cornea (though this does not work if the foreign body is already through the cornea)
  • Referral to ophthalmology, antibiotic drops, and dilating drops are recommended options upon discharge
  • Complications include poor wound healing, scarring, and infection

References

Camodeca AJ, Anderson EP. Corneal Foreign Body. [Updated 2021 Apr 26]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK536977/

https://www.reviewofoptometry.com/article/no-insult-to-injury-managing-foreign--body-removal

Summarized by John Spartz, MS4 | Edited by Erik Verzemnieks, MD

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Podcast 746: Elderly Head Trauma on Anticoagulation

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11 Jan 20223min

Podcast 745: Nitrous-Induced B12 Deficiency

Podcast 745: Nitrous-Induced B12 Deficiency

Contributor: Alicia Oberle, MD Educational Pearls: Nitrous oxide (N2O) can cause a vitamin B12 deficiency in patients after regular use N2O is used in procedural sedation but also as a popular recrea...

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Podcast 744: Glucagon for Beta Blocker Toxicity

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29 Dec 20213min

Podcast 741: Calcium for Cardiac Arrest

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Contributor: Aaron Lessen, MD Educational Pearls: Study of nearly 400 patients evaluating giving calcium during cardiac arrest with the endpoint as return of spontaneous circulation (ROSC) Compared g...

28 Dec 20212min

Podcast 740: Placenta Previa

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Contributor: Peter Bakes, MD Educational Pearls: High concern causes of third trimester vaginal bleeding include placenta previa, placental abruption, or vasa previa In placenta previa, the placenta ...

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Podcast 739: Perceptions of Dress

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Contributor: Aaron Lessen, MD Educational Pearls: Study examined patient perceptions of providers wearing traditional white coats,  fleece coats and soft-shell jackets Found that white coats were see...

20 Dec 20213min

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